GolfGTIforum.co.uk

General => The garage => Topic started by: james c on 17 September 2012, 21:45

Title: would a waste gate on a gttdi mark4 golf take pressure off turbo??
Post by: james c on 17 September 2012, 21:45

195/200bhp
boosting 2.1 bar

(http://i1075.photobucket.com/albums/w425/martin02wx/Facebook/my%20car/402824_466829493349310_2082875110_n.jpg)

Title: Re: would a waste gate on a gttdi mark4 golf take pressure off turbo??
Post by: DCmk3 on 17 September 2012, 21:54

Stock they're designed to recirculate the boost pressure through the system.
I've heard by adding a waste gate it will cause the mixture to run lean during changes as the system doesn't know how to compensate for the loss of pressure during the gear change.

Title: Re: would a waste gate on a gttdi mark4 golf take pressure off turbo??
Post by: james c on 17 September 2012, 21:57

good to no, so if I didn't get a waste gate and just decat and make exhaust bigger would it be a help

Title: Re: would a waste gate on a gttdi mark4 golf take pressure off turbo??
Post by: DCmk3 on 17 September 2012, 22:12

People have mixed ideas, like some say aftermarket management can solve the issue with having a waste gate, others say it's still safer to have the boost during gear changes recirculating instead.

Title: Re: would a waste gate on a gttdi mark4 golf take pressure off turbo??
Post by: james c on 17 September 2012, 22:14

kk thanks for the info mate  :smiley:

Title: Re: would a waste gate on a gttdi mark4 golf take pressure off turbo??
Post by: danny_p on 18 September 2012, 00:06

think yur talking about  recirculation valves or dump valves.  wastegats  allow exhaust to bypass the hot side of the turbo to controll boost pressure

Title: Re: would a waste gate on a gttdi mark4 golf take pressure off turbo??
Post by: DCmk3 on 18 September 2012, 00:21

Ah yea..  :whistle: